Automatic telephone system



W. T. POWELL AUTOMATIC TELEPHONE SYSTEM L//vf F//vof/Ps 2 w/Y 7mm/Ks /Iza Feb. 27, 1951 Filed Jan. 9, 1947 L//VE 300 L//VE GROUP FIG. 6

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- AUTOMATIC TELEPHONE sYsTM Filed Jan. 9, 1947 23 Sheets-Sheet 4 w//vmfo z Pow/SAL f5.3 BY

Feb. 27, 1951 w. T. POWELL AUTOMATIC TELEPHONE SYSTEM Filed Jan. 9, 1947 25 Sheets-Sheet 5 I Ll. M

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AUTOMATIC TELEPHONE SYSTEM-1` y Filed Jan. 9, 1947 2s sheets-sheet e INVENTOR. l I W/A/F/PfD POWELL Feb. 27, 1951 w. T. POWELL 2,543,534

AUTOMATIC TELEPHONE SYSTEM Filed Jan. 9, 1947 23 Sheets-Sheet 7 SEE F/G. I7

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AUTOMATIC TELEPHONE SYSTEM Filed Jan. 9, 194'?` 25 lShteS-Sheet lO F549 B'JXWW Feb. 27, 1951 w. T. PowELL 2,543,534

AUTOMATIC TELEPHONE SYSTEM Filed Jan. 9, 1947 23 Sheets-Sheet ll JKM l0 l BY w. T. POWELL AUTOMATIC TELEPHONE SYSTEM' Feb. 27, 1951 Filed Jan. 9, 1947 QI 23 Sheets-SheaerI l2 Feb. 27, 1951 w. T. POWELL 2,543,534

AUTOMATIC TELEPHONE SYSTEM Filed'Jan. 9, 1947 25 sheets-sheet 1s 7'0 NEG. PULSER FIV/75E 2 4 REV. R//VG TONE 10,2 IN V EN TOR.

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AUTOMATIC TELEPHONE SYSTEM Filed Jan. 9, 1947 23 Sheets-Sheet 14 my. ff BY J xm Feb. 27, 17951 w. T. PowELL lv2,543,534

AUTOMATIC TELEPHONE SYSTEM Filed Jan. 9, 1947 23 Sheets-Sheet l5 IRK. /0 @ROI/P 7PM /0 GPO//P 2 PHP5 E .8

IN V EN TOR. W//VF/FED 7.' POW'LL JKM HTTO/P/VEY t W. T. POWELL AUTOMATIC `TELEPHONE SYSTEM Feb. 27, 1951 25 Sheets-Sheet 16 Filed Jan. 9, 1947 10J/I 1N VEN TOR. W//VF/ED Z POWEL L i.-| l- IT l Feb.. 27, 1951 w. T. PowELL 2,543,534

AUTOMATIC TELEPHONE SYSTEM Filed Jan. 9, 1947 23 Sheets-Sheet 17 JII 64 PR/Mmv we. mx. N co/v/vfero/Ps L 2 wml mx.

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W/MWED 7. POWELL STHTIOIV REG/STER Feb. 27, 1951 w. T. POWELL 2,543,534

AUTOMATIC TELEPHONE SYSTEM Filed Jan. 9, 1947 25 Sheets-Sheet 20 /94 IN V EN TOR. W//VF/PED Z' POWEL L \`94 p w l g TENS REG/STER HUNDREDS REG/$7514? f5.1@ JKM 

